The Number

28561

Twenty-Eight Thousand Five Hundred and Sixty-One

In Base 21 Unovigesimal Is

31g121

The numbers with a 21 subscript use Base 21 Unovigesimal notation.

For more familiar numbers: See Twenty-Eight Thousand Five Hundred and Sixty-One in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

28558
31fj21
Twenty-Eight Thousand Five Hundred and Fifty-Eight in Base 21 Unovigesimal
28559
31fk21
Twenty-Eight Thousand Five Hundred and Fifty-Nine in Base 21 Unovigesimal
28560
31g021
Twenty-Eight Thousand Five Hundred and Sixty in Base 21 Unovigesimal
28562
31g221
Twenty-Eight Thousand Five Hundred and Sixty-Two in Base 21 Unovigesimal
28563
31g321
Twenty-Eight Thousand Five Hundred and Sixty-Three in Base 21 Unovigesimal
28564
31g421
Twenty-Eight Thousand Five Hundred and Sixty-Four in Base 21 Unovigesimal

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

2.8561e4

Reciprocal

A number multiplied with its reciprocal is one.

0.0006gkj295ajh3k21

The reciprocal of 28561 in Base 21 Unovigesimal.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 31g121 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Twenty-eight thousand five hundred and sixty-one is a composite number with 5 total factors (including 1 and itself).   See primes in Base 21 Unovigesimal

A Composite

Composites have more than just these two factors.

Twenty-eight thousand five hundred and sixty-one is a composite number with 5 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number twenty-eight thousand five hundred and sixty-one has the following 1 prime factor:

13
d21
Thirteen in Base 21 Unovigesimal

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

d214 = 31g121

Base Conversions

The number twenty-eight thousand five hundred and sixty-one in 35 different bases